As the U.S. Postal Service deals with its busiest week of the year, the crush of snail mail won’t feature many/any Christmas cards crossing paths between Oakland and Knoxville.

Former Raiders coach Lane Kiffin was fired in September, complete with a scathing press conference from owner Al Davis regarding the reasons for the move.

Kiffin has since filed a grievance with the league office regarding the money that he hasn’t been paid.

And so should interim (for two more games) coach Tom Cable be upset to learn that Kiffin is rounding up some of his former Oakland assistants for Kiffin’s new job in Tennessee? Regardless of whether Cable should be upset, he is.

“I’m pissed. That’s the best way to put it,” Cable said, according to Jerry McDonald of InsideBayArea.com. “Quite frankly, that’s the only way I can put it.”

Gone is offensive line coach James Cregg, who filled the spot Cable occupied before his promotion. Director of football operations Mark Jackson and administrative aide Steve Reaves is leaving, too.

Amazingly, Reaves was still employed by the Raiders even though he is Kiffin’s brother-in-law.

For starters, Cable really shouldn’t care, because he won’t be the head coach next season. Also, what the hell are these guys supposed to do? Hang around to see whether they still have a bunk on a sinking ship or get in on the ground floor with a new opportunity?

Maybe the primary source of Cable’s frustration is that he hasn’t been invited to join Kiffin.